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Fan Coils

INSTALLATION, OPERATION, & MAINTENANCE MANUAL

2

It is the responsibility of the end user to properly characterize and 
dispose of all waste materials according to applicable regulatory 
and legal entities. Where reasonable, safe, and compliant with 
local regulatory and legal requirements, IEC encourages recycling 
materials when disposing of its products.

International Environmental Corporation (IEC) works continually 
to improve its products. As a result, the design and specifications 
of each product may be changed without notice and may not be 
as described herein. Please contact IEC for information regarding 
current design and product specifications. Statements and other 
information contained herein are not express warranties and do not 
form the basis of any bargain between the parties but are merely 
IEC’s opinion or commendation of its products. Manufacturer’s 
standard limited warranty applies.

Summary of Contents for C Y 02 Series

Page 1: ...ice Life Fan Coils INSTALLATION OPERATION MAINTENANCE MANUAL Energy efficient compact blower coils Ideal for educational hospitality multi family or other commercial environments Designed for ducted applications Nominal CFM range of 600 to 3 000 CFM ...

Page 2: ...oducts International Environmental Corporation IEC works continually to improve its products As a result the design and specifications of each product may be changed without notice and may not be as described herein Please contact IEC for information regarding current design and product specifications Statements and other information contained herein are not express warranties and do not form the ...

Page 3: ...g SECTION TWO Start Up 9 General 10 Cooling Heating System 10 Air System Balancing 10 Eco telligent Motor 11 Water Treatment 12 Water System Balancing 12 Controls Operation SECTION THREE Normal Operation Periodic Maintenance 12 General 13 Motor Blower Assembly 13 Coil 13 Electric Resistance Heater Assembly Table of Contents 13 Electrical Wiring and Controls 14 Valves and Piping 14 Filters Throwawa...

Page 4: ...s such as clear water or dry nitrogen to avoid possible damage or injury in the event of a leak or component failure during testing Always protect adjacent flammable material when welding or soldering Use a suitable heat shield material to contain sparks or drops of solder Have a fire extinguisher readily available The manufacturer assumes no responsibility for personal injury or property damage r...

Page 5: ...g and after installation special care must be taken to prevent foreign material such as paint plaster and drywall dust from being deposited in the drain pan or on the motor or blower wheels Failure to do so may have serious adverse effects on unit operation and in the case of the motor and blower assembly may result in immediate or premature failure All manufacturer s warranties are void if foreig...

Page 6: ... to the unit On those units requiring chilled water and or hot water the proper line size and water temperature should be available to the unit In the case of refrigerant cooling the proper line size and refrigerant type should be available to the unit On units with steam heating coils the proper line sizing and routing should be verified and the maximum steam pressure applied to the unit should n...

Page 7: ...ing is contained in the drain pan or other device such as an optional extended drain pan or factory drip lip Factory drip lips are field installed and may be packaged separately from the unit Factory supplied cooling coil valve packages will be arranged to locate as much of the package as possible over a standard drip lip If none of the above factory accessories have been provided with the units a...

Page 8: ... shipped with a bottom return air inlet These units may be converted to rear return by removing the bottom inlet filter retainer clips and filter then removing the plenum rear panel The rear panel must then be moved to the bottom of the unit and reversed so that the top edge when rear mounted is toward the supply end of the unit and reinstalled on the bottom of the plenum The panel should be posit...

Page 9: ...wed regarding ventilation and safety equipment The manufacturer s directions should be followed for the products being used To repaint the factory baked enamel the finish should be prepared by light sanding with 280 grit sand paper or 000 or 0000 fine steel wool The surface may also be wiped with a liquid surface etch cleaning product such as No Sand or Pasceo These items should be available at mo...

Page 10: ...g after start up operations CAUTION The air vent provided on the unit is not intended to replace the main system air vents and may not release air trapped in other parts of the system Inspect the entire system for potential air traps and vent those areas as required independently In addition some systems may require repeated venting over a period of time to properly eliminate air from the system A...

Page 11: ...fer to Appendix B for adjustment procedure Variable Airflow for 0 10 VDC Flo 1 2 3 Terminals Flo 0 4 Terminals Com Pot Adjustment Flo 1 2 3 in the Field Pot Adjustment Flo 0 4 Contact Factory If a factory provided thermostat or DDC controller is utilized then the unit is already correctly configured IEC recommends using the specified thermostat or DDC controller to commission the unit whenever pos...

Page 12: ...ration After the entire system is balanced these conditions will not exist on properly designed systems Controls Operation Before proper control operation can be verified all other systems must be operating properly The correct water and air temperatures must be present for the control function being tested Some controls and features are designed to not operate under certain conditions For example...

Page 13: ...ion may result in the heater cycling on the high limit thermal cutout Sheath heaters have automatic reset switches only Open strip heaters have an automatic reset switch with a back up high limit thermal switch Automatic reset switches are as the name implies they reset automatically after the heater has cooled down High limit thermal switches must be replaced once the circuit has been broken The ...

Page 14: ...e throwaway filters permanent filters may be cleaned and re installed in the unit instead of being discarded when dirty The optional factory permanent filter may be cleaned in hot soapy water to remove any trapped dirt It should then be set aside on edge to dry Before replacing the filter in the unit it should be recharged with some type of entrapment film such as Film Cor Recharging Oil The filte...

Page 15: ... or left hand while facing into the air stream 4 Complete part description including any numbers On warranty replacements in addition to the information previously listed the unit shipping code which appears on the upper right hand corner of the serial plate is required Contact the factory for authorization to return any parts such as defective parts replaced in warranty All shipments returned to ...

Page 16: ... unit Proper hot water line size to unit All services to unit in code compliance All shipping screws and braces removed Unit protected from dirt and foreign matter Cooling Heating Connections Protect valve package components from heat Mount valve packages Connect field piping to unit Pressure test all piping for leaks Install drain line and traps as required Insulate all piping as required Install...

Page 17: ...o the DC common terminal labeled L2 above the potentiometers and to the left of the orange relay 5 Attach the red positive lead of the meter to the red wire that bridges the 0 10VDC outputs high medium and low 6 High Speed Close High speed relay by applying 24V to the High terminal Using a small screwdriver turn the VR3 potentiometer so the meter measures 4 51 Vdc This will set the ECM speed to 90...

Page 18: ...Attach the red positive lead of the meter to the high speed Flo1 terminal below the Potentiometer 6 High Speed Using a small screwdriver turn the Flo1 potentiometer so the meter measures 4 51 Vdc This will set the ECM speed to 90 of maximum for high speed 7 Medium Speed Using a small screwdriver turn the Flo2 potentiometer so the meter measures 3 53 Vdc This will set the ECM speed to 70 of maximum...

Page 19: ...f a breach of the Limited Express Warranty IEC will only be obligated at IEC s option to repair the failed part or unit or to furnish a new or rebuilt part or unit in exchange for the part or unit which has failed If after written notice to IEC s factory in Oklahoma City Oklahoma of each defect malfunction or other failure and a reasonable number of attempts by IEC to correct the defect malfunctio...

Page 20: ...ATION OPERATION MAINTENANCE MANUAL Contact your local IEC Sales Representative for further details and pricing applicable to this product Visit our website iec okc com to find your local IEC Sales Rep IEC Part Number I100 90000950 IOM 100 Revision 12 1 2020 2000 2020 International Environmental Corporation IEC ...

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